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TDA7438 PDF预览

TDA7438

更新时间: 2024-11-15 22:53:11
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 音频控制集成电路消费电路商用集成电路光电二极管信息通信管理
页数 文件大小 规格书
17页 152K
描述
THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7438 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP, DIP28,.6
针数:28Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.81Is Samacsys:N
信道分离:100 dB商用集成电路类型:TONE CONTROL CIRCUIT
谐波失真:0.01%JESD-30 代码:R-PDIP-T28
JESD-609代码:e3长度:36.83 mm
频带数量:3信道数量:2
功能数量:1端子数量:28
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP28,.6封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):245
电源:9 V认证状态:Not Qualified
子类别:Other Consumer ICs最大供电电压 (Vsup):10.2 V
最小供电电压 (Vsup):6 V表面贴装:NO
技术:BICMOS温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:15.24 mm
Base Number Matches:1

TDA7438 数据手册

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TDA7438  
THREE BANDS  
DIGITALLY CONTROLLED AUDIO PROCESSOR  
INPUT MULTIPLEXER  
- 3 STEREO INPUTS  
- SELECTABLEINPUT GAIN FOR OPTIMAL  
ADAPTATIONTO DIFFERENT SOURCES  
ONE STEREO OUTPUT  
TREBLE, MIDDLE AND BASS CONTROL IN  
2.0dB STEPS  
VOLUMECONTROL IN 1.0dB STEPS  
TWO SPEAKER ATTENUATORS:  
- TWO INDEPENDENTSPEAKER CONTROL  
IN 1.0dBSTEPS FOR BALANCE FACILITY  
- INDEPENDENT MUTE FUNCTION  
ALL FUNCTION ARE PROGRAMMABLE VIA  
SERIAL BUS  
SO28  
DIP28  
ORDERING NUMBER: TDA7438D (SO28)  
TDA7438 (DIP28)  
DESCRIPTION  
The AC signal setting is obtained by resistor net-  
works and switches combined with operational  
amplifiers.  
Thanks to the used BIPOLAR/CMOSTechnology,  
Low Distortion, Low Noise and DC stepping are  
obtained.  
The TDA7438 is a volume tone (bass, middle and  
treble) balance (Left/Right) processor for quality  
audio applicationsin car-radio and Hi-Fi systems.  
Selectable input gain is provided. Control of all  
the functions is accomplished by serial bus.  
BLOCK DIAGRAM  
MUXOUTL INL  
TREBLE(L) MIN(L) MOUT(L) BIN(L)  
BOUT(L)  
15  
3
4
5
6
7
18  
17  
16  
14  
L-IN1  
L-IN2  
L-IN3  
100K  
100K  
100K  
RM  
RB  
27  
SPKR ATT  
LEFT  
G
VOLUME  
TREBLE  
MIDDLE  
BASS  
LOUT  
21  
22  
20  
0/30dB  
2dB STEP  
SCL  
I2CBUS DECODER + LATCHES  
2
SDA  
R-IN1  
R-IN2  
R-IN3  
DIG_GND  
100K  
100K  
100K  
1
26  
SPKR ATT  
RIGHT  
G
VOLUME  
TREBLE  
MIDDLE  
BASS  
ROUT  
28  
VREF  
24  
25  
VS  
SUPPLY  
23  
INPUT MULTIPLEXER  
+ GAIN  
AGND  
RM  
RB  
8
9
19  
10  
11  
12  
13  
D96AU488A  
MUXOUTR INR  
TREBLE(R) MIN(R) MOUT(R) BIN(R)  
BOUT(R) CREF  
1/17  
April 1999  

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